Eo jam perventum est in Anatomes studio, ut nec in Majorum placitis tuto acquiescere, nec illa sola admittere possimus, quæ novo se commendant titulo, sed quærendum est potius prudens temperamentum, ut & hæc & illa commode jungamus, & ubique cavendum inprimis, ne à natura ipsa recedamus.
The paper deals with the use of dendrochronology for dating and linking a small group of late medieval triptychs in Norway. After a short introduction to dendrochronology, the triptychs are described as well as the photographic dendrochronological examination method used in the project. The results of the dendrochronological examination correspond with the dating given to the triptychs by art historians.
Tree -ring investigations on samples from modern oaks in the Swedish southwest region of Scania show that the area is a dendrochronological unit and that a chronology for the province is similar to a chronology for southern Denmark. Jahrringanalytische Untersuchungen an rezenten Eichen aus Scania in Sudwest-Schweden zeigen, das dieses Gebiet eine dendrochronologische Einheit darstellt und die Chronologie einer fur Sud Danemark aufgebauten Chronologie ahnlich ist. INTRODUCTION In 1967 investigations on modern trees showed that dendrochronology of oak was possible in northern Germany (Bauch, Liese, and Eckstein 1967). When Eckstein (1969) obtained good results from a dendrochronological investigation of the Viking town of Haithabu and at the same time presented methods for practical treatment of samples, an investigation of the possibilities in Denmark was started. Results of this investigation showed that the southern part of Jutland and the most northern part of Germany can be covered by one chronology, which also would be representative of the greater part of the rest of Denmark (Bartholin 1973). The valid area for a chronology for northern Germany was therefore larger than expected, and when a project was started in 1973 for the southern part of Sweden, we expected to be able to use the German experiences and methods to a great extent; firstly to discover a valid area for a chronology in the southwest region, Scania, and secondly what to include in a chronology. This paper presents the results of a primary investigation on modern samples of oak in Scania. METHODS AND SAMPLE COLLECTION The dating of modern samples was made by means of visual synchronization of the tree -ring curves supported by the values of agreement. The tree -ring curves were drawn on semilogarithmic paper as suggested by Huber (1941), and his method for calculating the value of agreement (Huber 1943) was used in a rationalized form for computer treatment (Eckstein and Bauch 1969). It was practical to collect the modern samples from as old trees as possible for the forthcoming chronology. In Scania there are many oaks, that by tradition are very thousand years old, and they were already mapped out. But inspection showed that these oaks in all cases had obtained their considerable size due to favorable growing conditions or had hollow trunks.
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